MITCH DANIELS: “Anyone criticizing this plan without offering a specific and equally bold program of his own has failed in the public duty to be honest and clear with Americans about the gravest danger we are facing together.”

MITT ROMNEY: "He is setting the right tone for finally getting spending and entitlements under control. Anyone who has read my book knows that we are on the same page.”

TIM PAWLENTY: “While the budget is going to be debated for several months to come, the more immediate issue we face is President Obama’s plans to raise the debt ceiling next month."

RICK SANTORUM: "Congressional Republicans are making the tough choices in the short and long-term to bring the Federal budget under control, and I urge the American people to stand with them in the face of Democratic party obstructionism."

RUDY GIULIANI: "It sounds like he's more of a president than President Obama. He's willing to take the risk that there's political fallout here. I don't know the answer to whether there [will] be political fallout from it or not, but I think it's a heck of a lot more courageous."